Unlocking the Cloudflare app ecosystem with OAuth for all

What this post added

This post details the technical implementation and challenges of upgrading Cloudflare's internal OAuth engine from Hydra 1.X to 2.X. It covers the strategies used to minimize user impact during the upgrade, including custom SQL migrations, a blue-green deployment strategy, and the implementation of a queue system for replaying revocation events. It also discusses performance improvements observed post-upgrade in both the database and the Hydra service.